Home / 690,364.81-952,475.11-403,681.92

Finding the Fourth Proportional to 690,364.81, 952,475.11 and 403,681.92

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Solution

The fourth proportional to 690,364.81, 952,475.11 and 403,681.92 is: 556,947.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,364.81 : 952,475.11 = 403,681.92 : x
  2. Step 2: Convert to fraction form
    690,364.81/952,475.11 = 403,681.92/x
  3. Step 3: Cross multiply
    690,364.81x = 952,475.11 × 403,681.92
  4. Step 4: Simplify right side
    690,364.81x = 384,496,981,157.01
  5. Step 5: Solve for x
    x = 384,496,981,157.01/690,364.81
  6. Step 6: Final answer
    x = 556,947.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.